This game basically has nothing, and it's one of my favorite PS2 games. The user Boizer added 7 years ago a tool called Glacier TEX Editor V3, in which I include atutorial on YouTube that is no longer available, which according to him allowed to edit the skins and textures.
I have experience in 3D editing in Sketchup and Photoshop, and I would like to make an improvement to this game because it is really worth reviving a game like this, but I need your help to know how to create a mod that allows you to reinsert the textures and modifications to the maps.
Then I leave the information that I have found so far:
The game Freedom Fighters uses a modified version of the Glacier Engine that was used for the first time in the game Hitman 2: Silent Assassin.
Some of the post that I found with respect to how to edit this game.
Although there are new versions in the settings, these were the settings that worked for me to extract the Freedom Fighters textures.
With the PCSX2 program, use version 0.9.8. With the Ninja Ripper 1.7.1, I use in Dd3D9 wrapper. The problem right now, and that is the reason for making this request, is to insert those edited images and/or models, either within a separate mod, or compiling them within the ISO image. If you have ideas, suggestions or contributions, let me know.
NOTE: It's my first time doing this, so if I do something wrong, do not hesitate to comment.